Pump-gear for windmills



( No Model.

'A. S. ERIGKSON. .PUMP GEAR FOR WINDMILLS.

No. 5131523. j Patented Dec. 25,1894.

INVENTOH A TTORNE Y8.

UNIT STATES PATENT OFFIC ANDREWV S. ERICKSON, OF HOLDREGE, NEBRASKA.

PUMP-GEAR FOR-WINDMILLS.

SPECIFICATION forming part of Letters Patent No. 531,523, dated December25, 1894.

Application filed $eptem'ber 10, 1894- Serial No. 522,959. (No model.)

To all whom it may concern:

Be it known that I, ANDREW S. ERIOKSON, I

of Holdrege, in the county of Phelps and State of Nebraska, haveinvented a new and Improved Pump-Gear for Windmills, of which thefollowing is a full, clear, and exact description.

The object of the invention is to provide a new and improved pump gearfor windmills, whereby the power of the windmill crank shaft isuniformly transmitted to the pump plunger, and the wind wheel is free toturn to the wind. without affecting the position of the pump plungers.

The invention consists of certain parts and details and combinations ofthe same, as will The windmill is provided with the usual windmill crankshaft A, journaled in suitable bearings B attached to the ring 0 mountedto turn in the usual manner on the bearing D secured to the upper end ofthe tower E. On the crank shaft A are formed the two crank arms A and Aextending in'opposite direc tions and connected by the pitmen F and Frespectively with the tubes G and G respectively, of which the tube G isfitted to slide in the tube G, and the latter is mountedto turn andfitted to slide in bearings I-I attached to the tower E. See Fig. 2.The'tnbes Gand G form a cross head.

The lower ends of the tubes G and G are provided with flanges G and Grespectively, on which rest the eyes Band 1 respectively, of the leversI and 1 respectively, fulcrumed on the tower E, as is plainly shown inFigs. 1 and 3. The levers I and I are connected with the pump rods J andJ, to impart areciprocating motion to the plungers in the pump,

to actuate the latter in the usual manner.

Now, it will be seen'that by the arrangement described the tubes G and Gare alternately raised and lowered to cause an up and down swingingmotion of the levers I and I, so that the pump is actuated, it beingunderstood that the flange G imparts an upward swinging motion to thelever I, and the flange G imparts an upward swinging motion to the leverI at the time the tubes G andG are raised. Now it will be seen that whenthe wheel of the windmill turns into the wind, then the tubes G and Greadily turn with the ring 0, without affecting the levers I and I,

in bearings attached to the tower, an inner tube fitted to slide in thesaid outer tube, pitmen connecting the said tubes with the crank arms ofthe windmill shaft, and levers connected between their ends with thepump rods and having a sliding connection at their inner ends with thelower ends of the. said tubes, the opposite outer ends of the leversbeing pivoted to the tower substantially as shown and described.

2. A pump gear for windmills, comprising an outer tube mounted to slideand fitted to turn in bearings held on the tower, an inner tube mountedto slide in the said outer tube,

both tubes being provided at their lower ends with flanges, pitmenconnecting the said tubes with the crank arms of the windmill shaft, andlevers fulcrumed on the tower and connected with the pump rods, the saidlevers being formed with eyes loosely engaging the lower ends of thesaid tubes and resting on the flanges thereof, substantially as shownand described.

ANDREW s. ERIoKsoN.

Witnesses:

M. L. GASTREN, 4 JOHN A. PEARSON.

